Drag-scraper equipment



Ap 9, 1929. w. P. ALEXANDER DRAG SCRAPER EQUIPHENT Filed )lay 9, 1928 2 Sheets-Sheet /f/QE,

Patented Apr. 9, 1929.

UNITED STATES PATENT OFFICE.

"WILLIAM P. ALEXANDER, F IIIERCHANTVLLE, NEX/V. JERSEY, ASSIGNOR TO R. H. BEAUMONT COMPANY, OF PI-ILADELHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

DRAG-SCRAPER EQUIPMENT.

Application filed May 9, 1928. SerialNo. 276,255.

The principal object of the present invention is to provide tor keeping the tail block opposite the windingv drums when both are mounted on wheels or trucks arranged to travel on parallel tracks or ways disposed at the same or at different levels so that when the drum is moved the tail sheave is moved at the same time and in the same direction and to the same extent.

To this and other ends hereinafter set fort-h the invention comprises the improven'ients to be presently described and linally claimed.

In the following description reference will be in ade to the accompanying drawings torming part hereof and in which Figurel is a top or plan view, partly dia- `.grammatie or schematic, illustrating an embodiment of the invention.

Fig: 2 is a similar view illustrating a moditication7 and Figs. 3 and d are respectively a schematic or diagrammatic plan and elevation illustrating` another embodiment of the invention. p

Referring to the drawings 1 is a movable drum car. 2 is a movable tail block. rlhere are parallel track or guide structures for the drum car and the tail block car. The track or guide structures may assume various forms and this is true of the drum ear and ot the tail block. As shown the track structure for the drum carcomprises rails 3 and the track structure l'or the tail block comprises the single guide or rail 1l. The tail block 2 is shown as connected with a trolley 6 a drag scraper. 7 is the cable by which the drap; scraper is Worked across the yard bounded by the tracks or waysl 3 and 4l. There are crossed cables 8 and 9 oppositely connected with the drum Car l and the tail block 27 or, more accurately, with its trolley and they are disposed at opposite ends ot' the travel ot the car and block. The sheaves et one pair are designated 10 and 1l, and the sheaves oit the other pair are designated 13. and lil, and when it is said that the crossed cables are oppositely connected with the car and tail block the meaning; is that one end Y ot the cable 9 is connected to the car l to draw it in one direction, and the other end of the cable 9 is connected With the trolley 5 to draw it in the other direction, and this is e. There are a pair et' sheaves tor each cable,

true ot the cable 8. The ways, rails or guides must be parallel but need not be at the saine level.

rhe cooperation ot the rails or guides, the drum car and the tail block and the cables 8 and 9, with their sheaves is such that the car and block are kept in the same relative posif tions when moved in either direction along the tracks or ways.

The construction and inode of operation ol the modilication shown in Fig. 2 are as above described except that the drum car is coupled by a stili`l leg 16 with a traveling ore bridge 17. The cables 8 and 9 are connected respectively with the ore bridge and driim car. In this modification there are two tail blocks 18 and 19 and they are mounted on a car 20, to the ends ot which the cables S and 9 are connected and which is adapted to travel on a pair of rails 2l.

The construction and .mode ot operation of the modification shown in Figs. 3 and l are as above described except as `:follows: The drum car 22 is connected with but some distance away from an inclined ramp 23 runningon the same track as the car. In this case one end of the cable 9 is connected with the ramp and one end olf' the cable 8 is connected with the drum car. In this case the drap; scraper works up and down the ramp and may retrieve coal or the like from a pile 2d and dump the saine into a railway or other car 25.` The drag scraper cable 26 is run over appropriately disposed sheaves 'l'or this piu-pose.

It will be obvious to those skilled in the art to which the invention relates that modilications may be made in details ot' construction and arrangement and matters ot mere form without departing' from the spirit of the invention which is not limited to such matters or otherwise than the prior art and the appended claim may require.

I claim Drap` scraper equipment comprisinp the combination ol a movable drum car, a niovable tail block, a parallel track structure for the drum car and the tail block, crossed cables oppositely connected with the car and tail block, and a pair of sheaves for each cable disposed at the opposite ends of the travel of the car and block.

WILLIAM P. ALEXANDER. 

